Results 61 to 70 of about 729,930 (169)
Constraints on Quasar Emission Properties from the HeII and HI Transverse Proximity Effect [PDF]
, 2019 Bright quasars are powerful sources of ionizing radiation and have profound impact on the Intergalactic Medium. In particular, they create regions with enhanced ionization and therefore reduced Lyman α forest absorption in their surroundings.
Schmidt, Tobias Marius
core +1 more source
Observing the redshifted 21 cm signal around a bright QSO at z ~ 10 [PDF]
, 2020 We use hydrodynamics and radiative transfer simulations to study the 21 cm signal around a bright QSO at z ~ 10. Due to its powerful UV and X-ray radiation, the QSO quickly increases the extent of the fully ionized bubble produced by the pre-existing ...
Zaroubi, S. +11 more
core +1 more source
Modernity and mimetic desire: A critique of René Girard
Constellations, Volume 31, Issue 1, Page 18-31, March 2024.
Amnon Lev
wiley +1 more source
"Fermi" bubbles are bursting from our galaxy. Their origins remain a mystery. [PDF]
Proc Natl Acad Sci U S A, 2023 Mann A.
europepmc +1 more source
SpaceLab; an Interstellar Exhibit of Glass Art
, 2017 SPACELAB was a one-of-a-kind showcase of glass art that explored the great unknown outer space. This collection of artwork examined human relationships with the universe, including space travel; extraterrestrial beings and intergalactic discoveries; the ...
Coll, Meegan +2 more
core
Field resonance propulsion concept
, 1979 A propulsion concept was developed based on a proposed resonance between coherent, pulsed electromagnetic wave forms, and gravitational wave forms (or space-time metrics).
Holt, A. C.
core
The Lie of Intergalactic Travel By Michael McDonald
Description The Lie of Intergalactic Travel presents the McDonald Constraint Closure Framework, a formal principle asserting that physical reality is defined not by mathematical possibility, but by constraint-supported realizability. The paper establishes that any physically valid system must satisfy a complete and self-consistent set of constraints ...
openaire +3 more sources
REVISITING THE FIRST GALAXIES: THE EFFECTS OF POPULATION III STARS ON THEIR HOST GALAXIES
, 2013 We revisit the formation and evolution of the first galaxies using new hydrodynamic cosmological simulations with the adaptive refinement tree code.
Muratov, Alexander L. +3 more
core +1 more source
The Cyberphysics of Tomorrow's World [PDF]
, 2016 This article would appeal to people interested in new ideas in sciences like physics, astronomy and mathematics that are not presented in a formal manner. -/- Biologists would also find the paragraphs about evolution interesting.
Bartlett, Rodney
core
An All-Sky, Three-Flavor Search for Neutrinos from Gamma-Ray Bursts with the IceCube Neutrino Observatory [PDF]
, 2015 Ultra high energy cosmic rays (UHECRs), defined by energy greater than 10^18 eV, have been observed for decades, but their sources remain unknown. Protons and heavy ions, which comprise cosmic rays, interact with galactic and intergalactic magnetic ...
Hellauer, Robert Eugene
core +1 more source